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Global chip rout accelerates as South Korea's Kospi crashes 11 percent and AI 'circular financing' fears mount

A worldwide semiconductor sell-off intensified on Tuesday, with South Korea's Kospi plunging nearly 11 percent and Nvidia falling 5 percent in pre-market trading, as investors lose confidence in the sustainability of the AI infrastructure boom. Bloomberg's semiconductor index dropped 7.5 percent amid concerns that AI companies are borrowing heavily to fund data centers in what analysts describe as circular financing arrangements, while Chinese chipmakers beginning to produce key manufacturing equipment domestically threaten the Western monopoly that underpins current valuations.

Global chip rout accelerates as South Korea's Kospi crashes 11 percent and AI 'circular financing' fears mount

The Chip Rout Is the Market Questioning the AI Money Loop

South Korea's Kospi dropped 11.5 percent on Tuesday, its steepest fall in months, as Samsung Electronics and SK Hynix each shed more than 10 percent 1. The sell-off split the market: the Dow rose 0.7 percent, the S&P 500 finished essentially flat, and the Nasdaq declined as semiconductor shares dragged the tech-heavy index lower 2.

Intel, AMD, Sandisk, Western Digital, and Seagate all dropped more than 4 percent 1. This was not a broad-market panic. It was a targeted repricing of the semiconductor supply chain.

Two forces drove it, and together they pose the question every builder and investor is now weighing: is this a correction or a confidence break?

The first force is the most immediate. On Monday, the Wall Street Journal reported that Nvidia is in discussions to provide $250 billion in backing for an OpenAI datacenter project in Ohio 1. Nvidia, which carries an investment-grade credit rating, would effectively be lending its balance sheet to its largest customer so that customer can keep buying Nvidia chips.

That is the structure analysts and investors are calling "circular financing" 2. The AI industry's biggest players are funding one another's expansion, creating a loop where capital circulates among a small group of companies rather than arriving from end customers paying for a product with real revenue. Nvidia backs OpenAI. OpenAI builds data centers. The data centers buy Nvidia GPUs. The spending shows up on Nvidia's books as growth. Whether that constitutes durable demand or a sophisticated IOU is the question the Kospi just answered with an 11 percent drop.

The market's reaction to the deal news was specific and worth parsing. Nvidia fell 5 percent on Monday, closing below $200 per share 1. More telling than the stock move was the spike in Nvidia's five-year credit default swaps, which measure the cost of insuring the company's debt against default 1. Investors were not just selling shares. They were pricing in the possibility that underwriting $250 billion of someone else's project makes Nvidia itself riskier to lend to.

Ipek Ozkardeskaya, a senior analyst at Swissquote, said the CDS spike suggested "it may not yet be the right time to buy the dip" 1.

The second force is Chinese competition. The Information reported that China has begun mass production of homegrown deep ultraviolet lithography tools, the equipment used to manufacture semiconductors 1. If Chinese manufacturers can produce the machines that Western companies spent decades perfecting, the monopoly pricing power underpinning current chip-stock valuations erodes. The same day, Chinese memory chip maker CXMT rose 466 percent on its Shanghai stock exchange debut, a signal that investors see a viable domestic alternative to Samsung and SK Hynix 1.

Not everyone reads the sell-off as a structural reassessment. Jing Jie Yu, an equity analyst at Morningstar, called the drop "largely a kneejerk reaction and overdone," arguing that the market misjudged how much China's equipment progress actually threatens the global leaders 1.

That is the pivot point. A kneejerk reaction reverses when investors reassess. A confidence break does not, because it reflects a change in how investors perceive the underlying risk, not the headlines of the day. Tuesday's evidence pointed toward the latter. The Kospi's crash was not triggered by an earnings miss or a macroeconomic shock. It was triggered by the market beginning to question whether the AI revenue model works without the financing arrangements that are themselves starting to look fragile. When the cost of insuring Nvidia's debt rises on news that Nvidia is lending more money, the market is telling you the loop has a limit.

Oil prices continued to retreat on Tuesday as the U.S. and Iran entered diplomatic talks, and the Federal Reserve began a two-day policy meeting 2. Neither development moved chip stocks. This was not a risk-off day. It was an AI-specific repricing.

The Kospi's 11 percent drop is not telling you what happened on Tuesday. It is telling you the market has started pricing in what happens if that revenue does not arrive.

References

1.The Guardian, July 28 2026theguardian.com
2.Yahoo Finance, July 28 2026finance.yahoo.com

Cite this story

ProvenBrief (2026). "Global chip rout accelerates as South Korea's Kospi crashes 11 percent and AI 'circular financing' fears mount." ProvenBrief. https://provenbrief.com/story/global-chip-rout-accelerates-as-south-korea-s-kospi-crashes-11-percent-and-ai-ci

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